body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    background: rgb(9, 11, 35);               /* černé pozadí – vesmír */
  }

@keyframes float {
  0% {
    transform: translateY(-5vh);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(105vh);
    opacity: 0;
  }
}

.star {
  position: absolute;
  top: -10px;
  background-color: rgb(109, 128, 177);
  border-radius: 50%;
  opacity: 0.3;
  animation-name: float;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

/* sizes */
.size1 { width: 2px; height: 2px; }
.size2 { width: 3px; height: 3px; }
.size3 { width: 4px; height: 4px; }

.intro {
  position: absolute; /* Musí být nad GIFem */
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  z-index: 50; /* Nad velrybou */
  pointer-events: none; /* Celek neblokuje, ale... */
  gap: 10px;
  transform: translateY(-10vh);
}

.intro a, .intro button {
  pointer-events: all;
}

@font-face{
  font-family: HostinaText;
  src: url(fonts/OUTFIT-MEDIUM.TTF) format('truetype');
}

#PlayButton{
  margin-top: 10px;
  padding: 5px 15px;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;

  background-color: transparent; 
    background-image: url('extra/hratbtn.png');
    background-repeat: no-repeat; 
    background-size: 100% 110%;
    background-position: center;

  font-family: HostinaText;
  z-index: 50;
}

#InfoButton{
  margin-top: 10px;
  padding: 5px 15px;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;

  background-color: transparent; 
    background-image: url('extra/hratbtn.png');
    background-repeat: no-repeat; 
    background-size: 100% 110%;
    background-position: center;

  font-family: HostinaText;
  z-index: 50;
}
.nazev{
  margin: 0;
  font-family: HostinaText; /* Nebo HostinaText2 pro bold */
  font-size: 4.5vw;
  color: white;
  text-shadow: 0 0 15px rgba(184, 223, 253, 0.481);
  line-height: 1.2;
}

nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px; /* Mezera mezi tlačítky Hrát a Info */
}

#page-transition-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: url(pozadí/pozadi\ pro\ krevetaka.png); 
  opacity: 0; 
  z-index: 999; 
  pointer-events: none; 
}


@keyframes fadeOut {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

.is-leaving #page-transition-overlay {
  opacity: 1; 
  animation-name: fadeOut;
  animation-duration: 0.5s; 
  animation-fill-mode: forwards; 
}


#velrybapozadi {
  z-index: 5; 
  position: absolute;
  opacity: 30%;
  mix-blend-mode: multiply;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%); 
  width: auto; 
  max-width: 110vw;
  height: auto;
  pointer-events: none;
}

footer{
  font-family: HostinaText;
  font-size: smaller;
  z-index: 50;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: absolute;
  bottom: 20px;
  width: 100%;
  color: white;
}